Industrial Pipe Insulation Patents: Who Leads, Where Gaps Remain 2026
- 62.2% concentration. The top 5 of 32 ranked assignees account for 92 of the 148 records in scope, with a long tail of single- and double-filing entrants below.
- Filing has cooled from its 2020 peak. 31 records in 2020 fell to 12 by 2021 and 4 by 2024, a 67% drop over that span — though 2025-26 figures are still filling in under normal publication lag.
- Detection dominates over materials. G01N testing and measurement classes cover 63.5% of records, versus 23.0% for F16L pipe/fitting hardware — the claim pressure sits on sensing, not on insulation chemistry.
Filing growth compares 2021 (12 records) with 2024 (4) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 148 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks patent filings at the intersection of pipe insulation systems and corrosion under insulation (CUI) detection — a problem specific to process industries where insulated piping hides corrosion until it causes a failure. The search combines insulation-system terms (jacketing, hydrophobic insulation, cladding overlap) with inspection and diagnostic terms (pulsed eddy current, water ingress path, risk-based inspection), capturing both the physical insulation hardware and the sensing methods used to see through it.
Coverage runs from 2015 through the 2026-07-31 cut-off, spanning 148 published records. Because publication typically lags filing by around 18 months, the most recent one to two years understate actual filing activity and should be read as provisional rather than declining.
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
Filing trend and technology composition
Two views of the same 148 records: how filing activity has moved year over year, and which IPC subclasses carry the claim density.
Filing trend, 2017-2026
Filings rose from 6 in 2017 to a peak of 31 in 2020, then fell to 12 by 2021 and 4 by 2024 — a 67% decline over that three-year window. Treat 2025 and 2026 as incomplete rather than as a continuation of the drop, since publication lag has not caught up with those filing years yet.
IPC subclass composition
G01N (material analysis and testing) appears in 63.5% of the 148 records, well ahead of F16L (pipes and fittings) at 23.0%. Computing-heavy classes — G06N for AI models at 12.2% and G01B for dimensional measurement at 11.5% — outrank aerospace-platform classes like B64C and B64U, each near 8%, showing that sensing and analytics claims outnumber the aerial-delivery mechanisms they're sometimes paired with. Because records can carry multiple classes, these shares sum to more than 100% of the record total.
Shares are the percentage of the 148 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Industrial Pipe Insulation and Corrosion Under Insulation with Eureka
This page is one run against one query. Ask Eureka your own question about industrial pipe insulation and corrosion under insulation and every answer comes back with the patent numbers behind it.
Try EurekaA representative claim: dual-mode inspection vehicles
Two-stage corrosion under insulation detection methodology and modular vehicle with dual locomotion sensory systems
The filing describes an autonomous vehicle that can move by both air and ground, combining an infrared detector with a pulsed eddy current sensor. Infrared imaging first flags candidate areas of insulated equipment likely to hide corrosion; the pulsed eddy current sensor then inspects those flagged areas directly, without needing to strip the insulation first.The two-stage structure — a fast screening pass followed by a slower confirmatory sensor — is the pattern worth watching; several later filings in this dataset follow the same logic with different sensor pairings.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20230003687A1 | Systems, methods and apparatus for in-service tank inspections | 52 |
| 2 | US20020149359A1 | Method for measuring the wall thickness of an electrically conductive object | 48 |
| 3 | US10908068B2 | Thermography image processing with neural networks to identify corrosion under insulation (CUI) | 44 |
| 4 | US20190094124A1 | Thermography image processing with neural networks to identify corrosion under insulation (CUI) | 41 |
| 5 | US20100036702A1 | Asset Management Systems and Methods | 32 |
| 6 | US20180335404A1 | Two-Stage Corrosion Under Insulation Detection Methodology and Modular Vehicle with Dual Locomotion Sensory S… | 29 |
| 7 | US8423397B2 | Asset management systems and methods | 28 |
| 8 | US20210018426A1 | Metal loss determinations based on thermography machine learning approach for insulated structures | 26 |
| 9 | US20170168016A1 | Pulsed eddy current testing with dual-purpose coils | 21 |
| 10 | US20210094186A1 | Pipe traversing apparatus, sensing, and controls | 18 |
Citation counts favour older records simply because they have had more time to accumulate citations within the searched corpus — read this as a signal of influence, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →What the numbers mean for a filing decision
Four things the ranking, the trend and the class breakdown tell you before you draft a claim in this space.
The leadership tier is narrow but not closed
Five assignees out of 32 ranked hold 92 of the 148 records in scope. That is real concentration, but it still leaves a long tail — more than half the ranked field holds a handful of filings each, which is room for a well-drafted claim rather than a fully occupied space.
Post-peak filing has cooled, not stopped
The 2020 peak of 31 records reflects a burst of interest that has since settled to a lower steady rate. A 67% fall from 2021 to 2024 is a real signal, but 2025-26 data is still arriving under normal publication lag and should not be read as a further decline yet.
Sensing and analytics outweigh insulation hardware
Testing and measurement claims (G01N) appear in nearly two-thirds of records, more than double the share for pipe and fitting hardware (F16L, 23.0%). Filers are competing harder over how corrosion is detected than over how insulation itself is built or applied.
US and EPO carry the bulk of the filing activity
The United States leads with 42 filings, ahead of the EPO at 26 and WIPO/PCT at 14. Filing choices cluster where the process-industry installed base and the inspection-services market are largest, rather than spreading evenly across jurisdictions.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to industrial pipe insulation and corrosion under insulation, with the prior art for and against each one.
Who is filing, and where the momentum has gone quiet
The ranked field is dominated by oil and gas operators and inspection-technology specialists, with several leading names showing no filings in the most recent year — a pattern worth checking before assuming any one company still owns a branch.
A single operator sets the pace
The top-ranked assignee holds 31 records, well clear of fifth place at 13 — a gap that reflects sustained, multi-year filing rather than a single burst. Several of its recent-year filings show zero activity in the latest year, consistent with the broader post-2020 slowdown.
Collaboration is thin but concentrated
Only six co-assignee pairs appear across the dataset, and the strongest pair — an oil major with a research university — accounts for 11 shared records, far ahead of the next pairing. Most filers in this space patent alone rather than jointly.
Inspection-hardware specialists sit mid-table
Names focused on robotic and eddy-current inspection hardware occupy the middle of the ranking rather than the top, filing steadily but at smaller volume than the oil-major leaders. Their filings skew toward sensor and vehicle hardware rather than the AI-analytics classes.
| Assignee | Recent year | YoY |
|---|---|---|
| Saudi Arabian Oil Company (Saudi Aramco) | 0 | — |
| Shell Internationale Research Maatschappij BV | 0 | — |
| Arix Technologies Inc | 0 | — |
| NITROGAS AS | 0 | — |
| INDUSENZ AS | 0 | — |
| King Abdullah University of Science and Technology | 0 | — |
| EDDYFI NDT INC | 0 | — |
| RNS Tech | 0 | — |
Where to take this analysis
The dataset points to three practical next steps for a team deciding where to file or where to challenge.
Check the white-space chips against your own claim drafts
The under-claimed sub-areas above have activity but no dominant holder in this dataset — run a fresh search on each before assuming it is open.
Explore in EurekaWatch the leader's quiet year
Several top-ranked assignees show zero filings in the latest year; confirm whether that reflects a real pause or simply publication lag before adjusting freedom-to-operate assumptions.
Track assignee activitySeparate sensing claims from hardware claims
With G01N testing claims far outnumbering F16L hardware claims, a hardware-first filing strategy may face less crowded prior art than a sensing-first one.
Compare IPC classesCommon questions about this landscape
One assignee leads the ranked field with 31 records, well ahead of the fifth-placed company at 13. The top five assignees together hold 92 of the 148 records in scope, or 62.2%, which is meaningful concentration but still leaves a long tail of smaller filers with only a handful of records each. This pattern typically reflects large process-industry operators building internal inspection programs alongside smaller specialist inspection-technology firms filing narrower claims.
Filing peaked in 2020 at 31 records and has since fallen, dropping 67% between 2021 (12 records) and 2024 (4 records), which is the most recent year that can be treated as complete. Figures for 2025 and 2026 are still low, but that is expected: publication typically lags actual filing by around 18 months, so those years will keep filling in. It is more accurate to describe the field as past its filing peak than as actively accelerating right now.
Material analysis and testing (IPC class G01N) appears in 63.5% of the 148 records in scope, making sensing and diagnostic methods the dominant claim area. Pipe and fitting hardware (F16L) covers 23.0% of records, and AI-based computing methods (G06N) appear in 12.2%. Because a single record can carry multiple IPC classes, these percentages do not sum to 100% and should be read independently against the full record count.
Sub-areas such as hydrophobic insulation formulations, cladding overlap sealing geometry, and risk-based inspection scheduling show filing activity in this dataset but no single dominant claimant, unlike the detection-hardware classes where a handful of assignees hold most of the volume. A first claim in one of these branches would need to be checked against the specific records already filed there, but the concentration data suggests these areas are less crowded than pulsed eddy current or thermographic detection methods. Materials chemistry in particular looks comparatively under-claimed relative to sensing hardware.
The most-cited records in this dataset were filed earlier, simply because older filings have had more years to accumulate citations within the searched corpus. A 2019 filing on dual-mode inspection vehicles and earlier thermography-based CUI detection filings top the citation counts partly for this reason, not necessarily because they remain the most commercially relevant approach today. Citation rank is best read as a measure of historical influence on the field's vocabulary and claim structure, not as a ranking of current technical importance.
Research Industrial Pipe Insulation and Corrosion Under Insulation in depth with Eureka
Go past this page: query the whole industrial pipe insulation and corrosion under insulation corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.